External hard drive spinning down (and up) on it's own

I thought my 5 month old external 1tb dual drive was dying at first, but now am seeing a pattern. There is a forum over at macrumors about this. http://forums.macrumors.com/showthread.php?p=445690
I always make sure in my energy settings i have spin down external drives unchecked, because it's known that spin downs and ups can cause drives to fail sooner. Yet I now find my external drive spinning down whenever it's not in use while I'm sitting at my computer, and i hear it spin up at the most random times, even when i'm not using my computer. sometimes in the middle of the night. This did not happen in tiger.
It's connected by firewire 800. At first I thought it was time machine but others in the macrumors forum claim it isn't that. I almost think its network activity. I'm considering using an applescript to access the drive every 5 or ten minutes automatically yet not do anything just to see if this stops it from spinning it down. I do consider this an annoyance and would hope apple will figure out what it is very soon, before it causes any detriment to the life of my expensive drive.

did you ever find a fix for this?
my ext FW800 drives constantly spin down, then when i do something later i get the beachball until they spin back up

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Hi David
Welcome to Apple Discussions
1. In the Energy Saver preference try setting Computer sleep: to "Never" and make sure the the box "Put the hard disk(s) to sleep when possible" is unchecked.
2. Try resetting the System Management Controller as described in the article below.
http://support.apple.com/kb/HT1543
Now then if you are still having a problem you might also:
1. Use the Restore Default button on the Energy Saver preference panel and then reselect your sleep settings.
or
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x

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Quote from: Richard on 15-November-07, 20:33:05
tornado2003,
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LN

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William G 42 wrote:
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1. Open Disk Utility in your Utilities folder.
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External hard drive spinning down (and up) on it's own

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